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  • Militarypol21

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    Jan 24, 2009
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    Noblesville, IN
    Study Ties Massive Midwest Quakes To Wabash Valley Fault - Indiana News Story - WRTV Indianapolis

    EVANSVILLE, Ind. -- New research by U.S. Geological Survey scientists is casting doubt on the long-held idea that the New Madrid fault zone in Missouri's Bootheel unleashed a series of devastating earthquakes in 1811 and 1812.

    In a new study, the researchers say the Wabash Valley Fault line that runs through southern Illinois may have been responsible, and that immediate and intense study of the fault's quake potential is needed.

    "What is puzzling is that when we measure the long-term rate of motion along the New Madrid Fault, it's almost zero," said Douglas Wiens, a professor and of earth and planetary sciences at Washington University in St. Louis. "How to interpret that is a big discussion among scientists. Some even suggest the recent quakes along the New Madrid Fault Zone are nothing more than aftershocks of the 1811-1812 events."

    Scientists note that there hasn't been a magnitude 6.0 earthquake on the New Madrid Fault in more than a century, the Evansville Courier & Press reports. But in the last 20 years, there have been at least three magnitude 5.0 or greater tremors along the Wabash Valley Fault, including a magnitude 5.2 quake in 2008 that was felt as far away as Milwaukee, Des Moines, Iowa and Atlanta.

    Susan Hough, a U.S. Geological Survey scientist in Pasadena, Calif., and five other researchers suggest in the publication "Seismological Research Letters," that the Jan. 23, 1812, earthquake may have occurred in White County, Ill.

    The White County site is along the Wabash Valley Fault, 130 miles from the New Madrid Seismic Zone.

    The researchers base their hypothesis on evidence of liquefaction at farms in the area and a written account from a White County man who witnessed the 1812 quake.

    Yearby Land wrote: "A big crack was made in the ground and you could not see to the bottom of it. The ground on the south of the crack sunk down about two feet. There were many square miles of level plain, and over it, in the earthquake times, piles of pure, snow white sand were heaved up."

    A 10-year study to map the structure of North America will include a thorough study of the Wabash Valley Fault system within the next two years. EarthScope, a joint effort of NASA, the National Science Foundation and the U.S. Geological Survey, has scientists deploying transportable broadband seismic stations on a grid across the United States.

    "In the 1970s, a network of seismographs were put in around the New Madrid Fault," Wiens said. "There's really not that many instruments recording activity along the Wabash Valley Fault. That will all change when a large array of seismic experiments is conducted in 2012."

    A series of four earthquakes in 1811 and 1812 were among the most violent earthquakes to ever hit the U.S. The quakes were estimated at magnitude 7.5 to 8.0, so strong the Mississippi River reportedly flowed backward. Damage occurred as far away as Washington, D.C., and Charleston, S.C.
     
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    Jun 7, 2010
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    (INDY-BRipple)
    Pretty interesting video I found. I realize these days about anything is possible, but with all the deaths that have occurred in Haiti, Chile, and China.. is Indiana ready for a quake? What would you do if everything started shaking? Are you prepared to go weeks maybe months without electricity? Is your food supply shortening out or are you stocked up? Are you prepared to handle looters?

    I for one better get out and start making some new friends because I'm nowhere near prepared.


    Here's the video:
    A major quake could shake the South


    Alot of problems that occured in those other countries are in due part to they're own fault. I cant say I'd expect anything less from abunch leeches like the Haitians, whose main GDP is made up of nothing but hand-outs from other Nations.

    I believe the big rally to "Save Haiti" was because a major oil. They were already struggling to begin with, this was just the icing on the cake.


    For me, people are too dependant on modern life; what is back breaking work today, was just another day just to survive 60 years ago.

    I personally have zero stock, aside from afew weapons and cans of food.
    Taking a look at Katrina, crime would skyrocket, and with the 3rd worlders that Indiana is letting in, deaths rates and other aspects would rise, aswell.

    The best guess to survive is to not be the lone idiot, but emmersed within a group.
     

    Tactical Dave

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    Feb 21, 2010
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    Plainfield
    FEMA is doing a full-scale National Level Exercise event in spring 2011 on this scenario. We've been doing a lot of prelim and ramp-up work to identify problems and response/restoration priorities in every city/county in the lower half of the state. FEMA's taking this one pretty seriously.


    They have been taking it pretty seriously for as long as I can remember. I was being told that it would greatly effect more then just the lower half of the state...... that is fairly old info though.
     

    Blackhawk2001

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    Jun 20, 2010
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    NW Indianapolis
    In the late 80s and thru 2002, I worked for Indy's Emergency Management Agency and was a member of the FEMA US&R Task Force. We spent a good bit of time preparing for a major earthquake both in Marion County and in the rest of the state. Geo map profiles at the time predicted that a catastrophic earthquake (7.5 or greater, depending upon epicenter) would devastate our state infrastructure as far north as Indianapolis. The state is liberally covered with small faults, which could be affected by a catastrophic earthquake in either the New Madrid or Wabash Valley faults.

    I've read Doug Copp's observations before and they make sense on some level. Going by my FEMA Structural Collapse training, a frame-built home (or other structure) is going to tend to deform laterally, which causes the roof to collapse, usually resulting in a parallelogram or tilt-roof collapse (I know that's not the correct nomenclature, but my ref books are buried in the garage somewhere). Your standard strip mall is usually tilt-up slab construction; one or more walls tends to tilt out from under the roof stringer supports, causing another tilt-roof collapse, with the failure wall tending to collapse outward. Tall concrete/steel structures (multistory office buildings) tend to collapse straight down because the greatest area of sway is at the top. If the roof supports fail, the additional weight of the roof on the subfloor structures overloads them and subsequent floors tend to collapse sequentially. This is called a 'pancake' collapse - the Twin Towers was a classic example of this type of failure.

    The important things to plan for in the event of a catastrophic earthquake are:
    1 - lots of infrastructure damage means slow-to-no public safety emergency response,
    2 - no food/fuel source resupply (most major cities have less than a 3-day supply of consumables available to them in the form of food outlet warehouses)
    3 - no power for extended periods (no roads, bridges, fuel pipelines damaged/destroyed)
     
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